Fix review comments.

Signed-off-by: Keith Rothman <[email protected]>

utils/fasm2frames.py

@@ -58,6 +58,7 @@ def run(db_root, filename_in, f_out, sparse=False, roi=None, debug=False):
     db = Database(db_root)
     assembler = fasm_assembler.FasmAssembler(db)
 
+    extra_features = []
     if roi:
         with open(roi) as f:
             roi_j = json.load(f)
@@ -68,10 +69,8 @@ def run(db_root, filename_in, f_out, sparse=False, roi=None, debug=False):
 
         assembler.mark_roi_frames(Roi(db=db, x1=x1, x2=x2, y1=y1, y2=y2))
 
-    if 'required_features' in roi_j:
-        extra_features = fasm.parse_fasm_string(roi_j['required_features'])
-    else:
-        extra_features = []
+        if 'required_features' in roi_j:
+            extra_features = fasm.parse_fasm_string(roi_j['required_features'])
 
     assembler.parse_fasm_filename(filename_in, extra_features=extra_features)
     frames = assembler.get_frames(sparse=sparse)